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Lim RRX, Ang WL, Ambrosi A, Sofer Z, Bonanni A. Electroactive nanocarbon materials as signaling tags for electrochemical PCR. Talanta 2022; 245:123479. [DOI: 10.1016/j.talanta.2022.123479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Revised: 04/08/2022] [Accepted: 04/10/2022] [Indexed: 11/15/2022]
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Wang X, Lu D, Liu Y, Wang W, Ren R, Li M, Liu D, Liu Y, Liu Y, Pang G. Electrochemical Signal Amplification Strategies and Their Use in Olfactory and Taste Evaluation. BIOSENSORS 2022; 12:bios12080566. [PMID: 35892464 PMCID: PMC9394270 DOI: 10.3390/bios12080566] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 07/20/2022] [Accepted: 07/24/2022] [Indexed: 05/07/2023]
Abstract
Biosensors are powerful analytical tools used to identify and detect target molecules. Electrochemical biosensors, which combine biosensing with electrochemical analysis techniques, are efficient analytical instruments that translate concentration signals into electrical signals, enabling the quantitative and qualitative analysis of target molecules. Electrochemical biosensors have been widely used in various fields of detection and analysis due to their high sensitivity, superior selectivity, quick reaction time, and inexpensive cost. However, the signal changes caused by interactions between a biological probe and a target molecule are very weak and difficult to capture directly by using detection instruments. Therefore, various signal amplification strategies have been proposed and developed to increase the accuracy and sensitivity of detection systems. This review serves as a reference for biosensor and detector research, as it introduces the research progress of electrochemical signal amplification strategies in olfactory and taste evaluation. It also discusses the latest signal amplification strategies currently being employed in electrochemical biosensors for nanomaterial development, enzyme labeling, and nucleic acid amplification techniques, and highlights the most recent work in using cell tissues as biosensitive elements.
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Affiliation(s)
- Xinqian Wang
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Dingqiang Lu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
- Correspondence: (D.L.); (G.P.)
| | - Yuan Liu
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (Y.L.); (W.W.)
| | - Wenli Wang
- Department of Food Science & Technology, School of Agriculture & Biology, Shanghai Jiao Tong University, Shanghai 200240, China; (Y.L.); (W.W.)
| | - Ruijuan Ren
- Tianjin Institute for Food Safety Inspection Technology, Tianjin 300308, China;
| | - Ming Li
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Danyang Liu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Yujiao Liu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Yixuan Liu
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
| | - Guangchang Pang
- Tianjin Key Laboratory of Food Biotechnology, College of Biotechnology & Food Science, Tianjin University of Commerce, Tianjin 300134, China; (X.W.); (M.L.); (D.L.); (Y.L.); (Y.L.)
- Correspondence: (D.L.); (G.P.)
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Koyappayil A, Lee MH. Ultrasensitive Materials for Electrochemical Biosensor Labels. SENSORS 2020; 21:s21010089. [PMID: 33375629 PMCID: PMC7796367 DOI: 10.3390/s21010089] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2020] [Revised: 12/18/2020] [Accepted: 12/23/2020] [Indexed: 12/16/2022]
Abstract
Since the fabrication of the first electrochemical biosensor by Leland C. Clark in 1956, various labeled and label-free sensors have been reported for the detection of biomolecules. Labels such as nanoparticles, enzymes, Quantum dots, redox-active molecules, low dimensional carbon materials, etc. have been employed for the detection of biomolecules. Because of the absence of cross-reaction and highly selective detection, labeled biosensors are advantageous and preferred over label-free biosensors. The biosensors with labels depend mainly on optical, magnetic, electrical, and mechanical principles. Labels combined with electrochemical techniques resulted in the selective and sensitive determination of biomolecules. The present review focuses on categorizing the advancement and advantages of different labeling methods applied simultaneously with the electrochemical techniques in the past few decades.
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Affiliation(s)
| | - Min-Ho Lee
- Correspondence: ; Tel.: +82-2-820-5503; Fax: +82-2-814-2651
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